Eyeglass frames with dynamic vent

ABSTRACT

Eyeglass frames include a face member and two temple members connected to the face member. The face member includes a rim with a brow configured to retain at least one lens. A vent passage is provided in the brow and extends from a front portion of the brow to a rear portion of the brow. A vent adjustment member provided on the brow directly above the at least one lens. The vent adjustment member is configured to move between a first position wherein the vent passage is substantially closed and a second position wherein the vent passage is open. The vent adjustment member is substantially flush with a medial portion and a lateral portion of the brow when the vent adjustment member is in the first position and offset from the medial portion and lateral portions of the brow when the vent adjustment member is in the second position.

FIELD

This document relates to the field of eyeglasses, and particularly toventilation arrangements for eyeglass frames.

BACKGROUND

Eyeglasses have been used for hundreds of years to provide visionassistance to wearers. Eyeglasses typically comprise a frame (which mayalso be referred to herein as “frames”) configured to retain a lens (or“lenses”). The frame includes a face member including two eyewires orrims that hold the lenses. A bridge that connects the two rims. Thebridge may include a nosepiece that allows the rims to rest morecomfortably on a wearer's nose. A temple member extends from the lateralside of each rim. The temple member is designed to extend rearwardly onthe head of the wearer and over the ears in order to provide a restingposition for the eyeglasses on the face of the wearer.

Eyeglasses provide vision assistance to the wearer in various ways.Prescription lenses provide corrective vision for the wearer, assistingthe wearer in seeing near or distant objects more clearly. Eyeglassesmay also provide protection for the eye of the wearer, includingprotection from wind or from flying debris. Eyeglasses with lightblocking features are commonly referred to as sunglasses. Sunglasses mayor may not include corrective lenses, but provide the benefit ofblocking bright or excessive light from the eyes of a wearer.

Sunglasses may be particularly useful for a wearer participating inathletic events. In these situations, the glasses should provide visionbenefits including protection from light, wind and other elements.Additionally, sunglasses for athletic events typically are typicallydesigned to cover a wide field of vision, including both central andperipheral vision of the wearer. Accordingly, the lenses for sunglassestend to extend across a relatively large area covering the eyes of thewearer. Often, these lenses are retained relatively close to thewearer's face in order to further limit the amount of direct lightreaching the eyes of the wearer. Unfortunately, these relatively largelenses worn close to the face limit the amount of airflow across theinterior surface of the lenses. This reduced airflow across the rear ofthe lenses results in fogging when condensation is formed on the rearsurface of the lenses. Fogging of the lenses is particularly problematicin high humidity conditions, or when the athlete is perspiring.

Various arrangements have been used in the past to avoid lens fogging.For example, many sunglasses incorporate ventilation features designedto allow heat to escape from the space between the lens and the face ofthe wearer. Some ventilation arrangements also encourage airflow throughthe space between the lens and the face of the wearer. Unfortunately,these ventilation features tend to allow additional light to reach theeyes of the wearer, thus reducing the effectiveness of the sunglasses.Additionally, while ventilation is sometimes useful for a wearer, thereare occasions when the ventilation may be counter-productive. Forexample, in high wind conditions additional ventilation may result intoo much airflow across the eyes of the wearer, thus drying the eyes andgenerally resulting in discomfort to the wearer.

In view of the foregoing, it would be advantageous to provide sunglassesand other eyeglasses that are configured to reduce fogging withoutallowing a significant amount of additional light to pass through thesunglasses to the eyes of the wearer. It would also be advantageous ifventilation features provided by the sunglasses were configured to limitairflow in certain situations where additional ventilation is notdesired. Additionally, it would be desirable if the anti-fogging andventilation features were inconspicuous on the eyeglasses and seamlesslyincorporated into other functional and aesthetic features of theeyeglasses.

SUMMARY

In accordance with one exemplary embodiment of the disclosure, there isprovided eyeglass frames comprising a face member including a rim with abrow. The rim is configured to retain at least one lens. Two templemembers are connected to the face member. A vent passage is provided inthe brow. A vent adjustment member is also provided on the brow directlyabove the at least one lens. The vent adjustment member is configured tomove between a first position wherein the vent passage is substantiallyclosed and a second position wherein the vent passage is open. The ventadjustment member is substantially flush with a medial portion and alateral portion of the brow immediately adjacent to the vent adjustmentmember when the vent adjustment member is in the first position. Thevent adjustment member offset from the medial portion and lateralportion of the brow when the vent adjustment member is in the secondposition.

Pursuant to another exemplary embodiment of the disclosure, there isprovided eyeglass frames comprising a face member including a rim with abrow. The rim is configured to retain at least one lens. Two templemembers are connected to the face member. A vent passage is provided inthe brow. A vent adjustment member is also provided on the brow directlyabove the lens and between medial and lateral portions of the browimmediately adjacent to the vent adjustment member. The vent adjustmentmember is configured to move between a first position wherein the ventpassage is substantially obstructed and a second position wherein thevent passage is substantially unobstructed. The vent adjustment memberprovides a substantially continuous brow surface with the medial andlateral portions of the brow when the vent adjustment member is in thefirst position. A first seam is provided at between the juxtaposedmedial portion of the brow and the vent adjustment member, and wherein asecond seam is provided between the juxtaposed lateral portion of thebrow and the vent adjustment member.

According to yet another exemplary embodiment of the disclosure,eyeglasses comprise frames including rims and temple members. Each rimincludes a brow with a brow recess. A lens is retained by each rim, withthe lens including an upper edge with a lens indentation formed betweena medial side and a lateral side of the upper edge of the lens. A ventadjustment member is provided in the brow recess. The vent adjustmentmember includes an anterior portion comprised of a first material and aposterior portion comprised of a second material. The first material hasa greater hardness than the second material. The vent adjustment memberis moveable between a first position wherein a vent passage extendingthrough the brow recess is substantially closed, and a second positionwherein the vent passage extending through the brow recess issubstantially open.

The above described features and advantages, as well as others, willbecome more readily apparent to those of ordinary skill in the art byreference to the following detailed description and accompanyingdrawings. While it would be desirable to provide an eyeglass frame thatprovides one or more of these or other advantageous features, theteachings disclosed herein extend to those embodiments which fall withinthe scope of the appended claims, regardless of whether they accomplishone or more of the above-mentioned advantages.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a right side perspective view of eyeglasses including a framewith a dynamic vent arrangement provided on a brow of the frame with thevent arrangement in a closed position;

FIG. 2 is a right side perspective view of the eyeglasses of FIG. 1 withthe vent arrangement in an open position;

FIG. 3 is an exploded view of the vent arrangement of FIG. 1;

FIG. 4A is an enlarged perspective view of a brow of the eyeglasses ofFIG. 2 with the vent arrangement in the closed position;

FIG. 4B is a cross-sectional view along line B-B of FIG. 4A showing thevent arrangement in the closed position;

FIG. 5A is an enlarged perspective view of a brow of the eyeglasses ofFIG. 2 with the vent arrangement in the open position;

FIG. 5B is a cross-sectional view along line B-B of FIG. 5A showing thevent arrangement in the open position;

FIG. 6 is a perspective view of the vent arrangement of FIG. 1 showingheat transfer through the vent arrangement when a wearer is stationary;and

FIG. 7 is a perspective view of the vent arrangement of FIG. 1 showingairflow through the vent arrangement when the wearer is moving in aforward direction.

DESCRIPTION

With reference to FIG. 1, in at least one embodiment, a set ofeyeglasses 10 includes eyeglass frames 12 with a pair of lenses 14supported by the frames 12. The frames 12 include a face member 20 and apair of temple members 40 connected to the face member 20. Theeyeglasses 10 also include a vent arrangement 50 with a dynamic ventadjustment member 51 that is moveable between an open and a closedposition.

The face member 20 is configured to extend across the face of a wearerand retain the lenses 14 in position over the eyes of a wearer of theeyeglasses 10. The temple members 40 are configured to extend rearwardlyfrom the face member 20 and rest on the ears of the wearer. Accordingly,the frames 12 are supported by the head of the wearer with the facemember 20 engaging the nose of the wearer and the temple members 40engaging the ears of the wearer.

The lenses 14 of the eyeglasses 10 may be provided as any of variouslens types as will be recognized by those of ordinary skill in the art.Examples of different types of lenses include prescription andnon-prescription lenses, darkened lenses, or lenses with any of variousadditional features such as shatter-proof lenses, glare-resistantlenses, polarized lenses, or any of various other types of lenses. Ifthe lenses 14 are darkened or include light blocking features, theeyeglasses may be considered “sunglasses”. In some embodiments, thelenses 14 may be transitional lenses that change from transparent totranslucent/darkened when exposed to ultra-violet radiation. Althoughtwo lenses 14 are shown in the embodiment of FIG. 1, the eyeglass 10 mayalternatively be configured to retain a unitary lens provided by asingle piece of plastic or glass which covers both eyes of the wearer.

The face member 20 includes a pair of rims 22, rim extension member 24and a bridge 26. The rims 22 include a right rim 22 a and a left rim 22b. As used herein, the singular term “rim 22” refers to either the rightrim 22 a or the left rim 22 b, and the plural term “rims 22” refers toboth the right rim 22 a and the left rim 22 b. The rims 22 areconfigured to retain the lenses 14. In the embodiment of FIGS. 1 and 2,each rim 22 is a partial rim that does not completely encircle the lens14 retained by the rim 22. However, it will be recognized that, inalternative embodiments, the rims 22 may be a full rims that completelyencircle the lenses.

With continued reference to FIG. 1, each rim 22 includes a brow 30defined by the portion of the rim 22 extending over the lens 14. Eachrim 22 further includes a front surface 32, a rear surface 34, an uppersurface 36, and a central groove 38 (see FIG. 3) formed on the lowerside of the brow between the front surface 32 and the rear surface 34.The central groove 38 is configured to receive one of the lenses 14.Each lens 14 is retained in the central groove 38 using any of variousfastening means, such as an adhesive or a screw or other fastener, orsome combination thereof. If a fastener is used, the fastener may extendthrough the rear surface 34 and the lens 14 and into the portion of therim 22 that is forward of the central groove 38. Each lens 14 includes acut-out or indentation 16 along the upper edge of the lens 14 in thearea of the brow 30. Beside this indentation 16, the sides 18 of thelens extend upward into the rim 22. As explained in further detailbelow, the upper edge of the lens 14 at the indentation 16 issubstantially flush with or slightly covered by the lower edge of thevent adjustment member 51 when in a downward position. However, theupper edge of the lens 14 at the indentation 16 is exposed when the ventadjustment member 51 is in an upward position.

The bridge 26 of the face member 20 is provided at a medial side of eachrim 22. The bridge 26 includes a lower surface 28 that is contoured inan arch-like shape to curve around the nose of the wearer. The bridge 26joins the right side rim 22 a to the left side rim 22 b. In theembodiment of FIGS. 1 and 2, the bridge 26 is provided as a unitarycomponent with the rims 22. The unitary component may be molded orotherwise formed from any of various materials as will be recognized bythose of ordinary skill in the art. For example, the rims 22 and thebridge 26 of the face member may be comprised of a thermoplasticpolyamide based on aliphatic and cycloaliphatic blocks. In otherexemplary embodiments, the rims 22 and the bridge 26 of the face membermay be comprised of other materials, such as thermoplastic polyurethaneor other polymer materials. A nose pad (not shown) may be coupled to thebridge 26 to rest on the nose of the wearer. The nose pad may becomprised of a resilient material having a lesser hardness than the rims22 and bridge 26 such that the nose pad is comfortable against the skinof the wearer and helps secure the frames 12 in place on the face of thewearer.

The lateral side of each rim 22 is connected to a rim extension member24. The rim extension member 24 is generally an enlarged portion of theframes 12 that is provided on the lateral sides of the face member 20between the lenses 14 and the temple members 40. In at least someembodiments, a hinge (not shown) is provided at the rim extension member24. The hinge allows the associated temple member 40 to pivot about apivot axis defined by the hinge. It will be recognized that in certainother embodiments, the frames 12 may be configured without a hingebetween the face member 20 and the temple members 40.

Two temple members 40 are connected to the face member 20. As usedherein, the singular term “temple member 40” refers to either the righttemple member 40 a or the left temple member 40 b, and the plural term“temple members 40” refers to both the right temple member 40 a and theleft temple member 40 b. Each temple member 40 extends rearwardly fromthe face member 20 to a position configured to rest behind the ear ofthe wearer. Each temple member 40 is generally elongated in form and mayinclude an end portion that curves either downward or inward, or bothdownward and inward. In the embodiment of FIG. 1, each temple member 40includes a temple frame member in the form of an elongated temple column42 and a temple overlay 44. The temple column 42 provides structuralsupport for the temple arrangement and is configured to retain thetemple overlay 44. The column 42 is comprised of a first material andthe overlay 44 is comprised of a second material, the first material ofthe column 42 being harder and more rigid than the second material ofthe overlay 44.

The frames 12 of the eyeglasses 10 may be comprised of various materialswith different qualities. For example, the rims 22 and temple column 42may be comprised of a first material and the overlay 44 and nose pad maybe comprised of a second material that having a lesser hardness (e.g., alesser durometer) than the first material. For example, the firstmaterial may be a thermoplastic polyamide based on aliphatic andcycloaliphatic blocks and does not contain a plasticizer. Thethermoplastic polyamide material may exhibit good heat resistance,excellent fatigue behavior, low moisture absorption and dimensionalstability. One exemplary material that may be used as the first materialis GRILAMID® TR 90. It will be recognized that various other materialsmay also be used as the first material. For example, in at least oneembodiment, the first material is a nylon based polymer material. Thesecond material may be provided by a thermoplastic elastomer (TPE)material such as a thermoplastic polyurethane (TPU). In otherembodiments, the second material may be comprised of natural orsynthetic rubber materials or any of various other polymer materials.

With reference now to FIG. 2, a vent arrangement 50 is provided in thebrow 30 directly above each lens 14. The vent arrangement 50 includes amoveable vent adjustment member 51 incorporated into a recess 53 in thebrow 30. The recess 53 is provided between a medial portion 54 and alateral portion 56 of the brow. In the embodiment disclosed herein, thevent adjustment member 51 includes a block 52 positioned in a forwardportion of the brow and a seal 74 that is connected to a posterior sideof the block 52. In other embodiments, the vent adjustment member maytake other forms with one or more different components. As shown inFIGS. 1 and 2, the block 52 is configured to open or close a ventpassage 99 (see FIG. 5B) that extends through the brow 30. When theblock 52 is in a downward position, as shown in FIG. 1, the vent passage99 is closed or obstructed. When the block 52 is in an upward position,as shown in FIG. 2, the vent passage 99 is open or unobstructed.

With reference now to FIG. 3, an exploded and enlarged view of the brow30 is shown. The brow 30 includes the block 52 of the vent arrangement50, the medial portion 54 provided on a medial side of the block 52, thelateral portion 56 provided on a lateral side of the block 52, and aposterior segment 58 provided on a posterior side of the block. Themedial portion 54 of the brow is a substantially solid componentextending from the front surface 32 to the posterior surface 34 of therim 22. The medial portion 54 includes a medial groove 60 that faces theblock 52. The medial groove 60 includes an enlarged upper recess 62 andan enlarged lower recess 64 separated by a neck 66. The upper recess 62and the lower recess 64 are each rounded in shape. As a result, theperimeter of the medial groove 60 resembles an outline of the number“8”.

Similarly, the lateral portion 56 is a substantially solid componentextending from the front surface 32 to the posterior surface 34 of therim 22. The shape of the front surface 32 of the rim 22 is substantiallythe same on both the medial portion 54 and the lateral portion 56 of thebrow. The lateral portion 56 also includes a lateral groove (not shown)that faces the block 52 and is substantially identical in size and shapeto the medial groove 60. As explained in further detail below, themedial groove 60 and the lateral groove together provide a track inwhich the block 52 rides when moving between the downward position (asshown in FIG. 1) and the upward position (as shown in FIG. 2).

With continued reference to FIG. 3, the block 52 is also a solidcomponent configured to fit within the recess 53 in the brow between themedial portion 54 and the lateral portion 56 of the brow 30. The block52 is positioned in the recess 53 above the lens 14 on the anterior side(which may also be referred to herein as a “forward” side) of the brow30. The posterior segment 58 of the brow is positioned behind the block52 on the posterior side (which may also be referred to herein as the“rearward side”) of the brow 30. The block 52 has a width that extendsacross a portion of the brow a distance of about 1 cm to 4 cm. Larger orgreater widths for the block 52 are possible, but it may be difficultfor a user to move the block between the upward and downward positionswith blocks that are smaller or greater in width.

The block 52 extends rearwardly from the front surface 32 of the rim 22to an intermediate surface 68 that faces the posterior segment 58 of thebrow 30. The thickness of the block from the front surface 32 to theintermediate surface 68 is between about 3 mm and 7 mm. The shape of thefront surface 32 of the rim 22 is substantially similar across theentire brow 30, including the medial portion 54, the block 52, and thelateral portion 56. In the embodiment disclosed herein, the frontsurface 32 of the rim 22 is substantially triangular in shape (i.e., asshown in FIG. 5B a triangle is formed by two lines defined by the angledsurfaces extending from a forward apex on the front surface with thethird line defined through the block and connecting the posterior edgesof the front surface of the block 52). This triangular shape provides anarrow-dynamic form across the front surface of the brow 30.Additionally, the front surface of the block 52 is substantially flushwith and aligned with the front surface of the medial portion 54 and thelateral portion 56 of the brow 30 when the block 52 is in the downwardposition, as shown in FIGS. 4A and 4B. As a result, the surface of thebrow appears to be substantially continuous and generally uninterruptedwhen viewed from the face of the eyeglasses 10.

As best shown in FIG. 4B, the intermediate surface 68 of the block 52(i.e., the surface opposite the front surface), is contoured andincludes an upper rib 70 and a lower rib 72. The upper rib 70 and thelower rib 72 both extend horizontally across the intermediate surface 68of the block 52. The upper rib 70 has a slightly smaller diameter and isslightly less rounded than the lower rib 72. As shown in FIG. 4B, thelower rib 72 is positioned directly above the lens 14 and is inrelatively close proximity to the lens 14 when the block 52 is in thedownward position. At the same time, a lower lip 73 of the block 52extends downward past the upper edge of the lens 14 when the block 52 isin the downward position. Accordingly, the lower rib 72 and the lowerlip 73 substantially cover the upper forward edge of the lens 14 whenthe block 52 is in the downward position. As a result, airflow over theupper edge of the lens 14 (and through the vent passage 99) issubstantially blocked when the block 52 is in the downward position.

A seal 74 is retained on intermediate surface 68 of the block 52. Theseal 74 includes a lower surface 82, an upper surface 84, ananterior-facing surface 86, and a posterior-facing surface 88. The seal74 is generally elongated and extends laterally across the entire block.The lower surface 82 of the seal 74 is positioned in the middle portionof the block 52, with the lower surface 82 of the seal 74 engaging thelower rib 72 of the block 52. The seal extends upwardly from the lowersurface 82 to the upper surface 84 as a substantially solid component.The upper surface 82 of the seal 74 is positioned slightly above theupper edge of the block 52 (e.g., between about 0.5 and 1 mm above theupper edge of the block 52).

The anterior-facing surface 86 of the seal 74 includes an elongatedC-shaped cavity 76 designed and dimensioned to securely receive theupper rib 70. An adhesive or other bonding material may be provided inthe C-shaped cavity to help maintain the placement of the seal 74 on theupper rib 70. The lower portion of the anterior-facing surface 86 istrapped between the upper rib 70 and the lower rib 72. Accordingly, theseal 74 engages both the upper rib 70 and the lower rib 72 on theintermediate surface 68 of the block 52. The posterior-facing surface 88of the seal 74 includes a slightly-bowed sealing surface that engages adeflection surface 59 on the posterior segment 58 of the brow 30.

The seal 74 is generally comprised of a material having a lesserhardness than the block 52. For example, the seal 74 may be comprised ofa rubber material or a thermoplastic elastomer material (such as thesame material provided by the overlay 44), while the block 52 iscomprised of a thermoplastic polyamide generally having a greaterhardness than the seal 74 (such as the same material provided by otherportions of the rim 22). The relatively soft and resilient material ofthe seal 74 allows the sealing surface 78 to closely engage thedeflection surface 59 and block the passage of air between the sealingsurface 78 and the deflection surface 59. Additionally, the relativelysoft and resilient material of the seal 74 results in a surface with arelatively high coefficient of friction. As shown in FIG. 4B, when theblock 52 is in the downward position, the seal 74 is pressed against thedeflection surface 59, and the relatively high coefficient of frictionof the seal resists upward movement of the block 52 while also dampeningvibrations. Additionally, because the upper surface 82 of the seal 74 ispositioned above the upper edge of the block 52, the seal may be used toengage the bill of a hat of the wearer, and further assist instabilizing the eyeglasses 10 and the hat on the head of the wearer.

With continued reference to FIG. 4B, the deflection surface 59 isprovided the posterior segment 58 of the brow 30 and defines the rear ofthe recess 53 in the brow 30. The deflection surface 59 is relativelysmooth such that air is not disturbed when flowing over the deflectionsurface 59. The deflection surface 59 extends from the upper surface 36of the brow 30 to a position behind the lens 14 on a lower surface ofthe brow. A thin channel 90 defines a relatively short distance betweenthe deflection surface 59 and the lens 14. The channel 90 forms a partof the vent passage 99 and is sufficiently wide to allow air to flowthrough the channel 90. In at least one embodiment, the width of thechannel (i.e., the distance between the deflection surface 59 and thelens 14) is between 0.5 mm and 3 mm, and is particularly about 1.5 mm.When the block 52 is in the downward position as shown in FIGS. 4A and4B, the deflection surface 59 is substantially covered and is notexposed on the face of the eyeglasses 10.

With continued reference now to FIG. 4A, a first small seam 55 exists atthe juxtaposition between the block 52 and the medial portion 54 of thebrow, and a second small seam 57 exists at the juxtaposition between theblock 52 and the lateral portion 56 of the brow. The first seam 55 andthe second seam 57 are both provided by small voids/interrupted surfacesbetween the block 52 and the immediately adjacent medial and lateralportions 54 and 56 of the brow. These interrupted surfaces allow theblock 52 to move relative to the medial and lateral portions 54 and 56.In particular, the block 52 is configured to move between the downwardposition of FIGS. 4A and 4B and the upward positions of FIGS. 5A and 5B,as noted by double-sided arrow 100.

With reference again to FIG. 3, the block 52 further includes a medialpost (not shown) and a lateral post 80. The lateral post 80 is providedon the lateral side of the block 52 and is designed and dimensioned toslide in the lateral groove. In particular, the lateral post 80 is acylindrical member that extends outwardly in a lateral direction on thelateral side of the block 52. In at least one embodiment, the lateralpost extends outwardly between about 1 mm and 5 mm from the remainingsurface on the lateral side of the block. The lateral post 80 isconfigured to ride within the lateral groove (which is substantiallyidentical to the medial groove 60 shown in FIG. 3) in the lateralportion 56 of the brow 30. The medial post is substantially identical tothe lateral post 80 and engages the medial groove 60 in the medialportion 54 of the brow 30.

When the block 52 is in the downward position, as shown in FIGS. 4A and4B, the medial post and lateral post 80 are positioned within andsubstantially fill the lower recesses of the associated groove (e.g.,medial groove 60). The necks 66 are dimensioned to retain the medialpost and the lateral post 80 in the lower recesses unless a sufficientupward force in excess of a threshold force is provided on block 52 toforce the medial post and the lateral post 80 through the necks 66 andinto the upper recesses of the associated groove (e.g., upper recess 62of the medial groove 60). When the wearer or other third party providesthe sufficient upward force (which may be referred to herein as a “ventadjustment force”) on the block 52, the block 52 is moved to the upwardposition as shown in FIGS. 5A and 5B. After the block 52 is moved to theupward position, the necks 66 are dimensioned to retain the medial postand the lateral post 80 in the upper recesses unless the vent adjustmentforce is provided on block 52 in a downward direction in order to forcethe medial post and the lateral post 80 through the necks 66 and intothe lower recesses of the associated groove (e.g., lower recess 64 ofthe medial groove 60).

With reference now to FIGS. 5A-5B, when the block 52 is in the upwardposition, the front surface of the block 52 is offset from the frontsurface on the medial portion 54 and the lateral portion 56 of the brow30. In particular, the front surface of the block 52 is positioned abovethe front surface of the medial portion 54 and the lateral portion 56 ofthe brow 30. As a result, the front surface 32 of the brow isinterrupted with the block 52 no longer substantially flush andsubstantially continuous when the block 52 is in the upward position. Asshown in FIG. 5B, the lower lip 73 of the block is directly above thelens 14 in this position, but the lower lip is in relatively distantproximity to the lens 14 when the block 52 is in the upward position (ofFIG. 5B) as compared to the downward position (of FIG. 4B).

When the block 52 is in the upward position, the vent passage 99 isgenerally open and unobstructed, and air is allowed to flow through thevent passage 99. In this position, a substantial portion of thedeflection surface 59 is exposed to the face of the eyeglasses. When thewearer is participating in a fast-moving sporting event, a significantamount of airflow through the eyeglasses is possible if the wearer movesthe block 52 to the upward position. As shown in FIG. 6, air directedonto the face of the eyeglasses (noted by airflow 102) during forwardmovement of the wearer will flow between the block 52 and the lens 14,strike the deflection surface 59, and flow across the rear surface ofthe lens 14. Alternatively, when the wearer is more stationary, heat isallowed to escape from the rear surface of the lenses. As shown in FIG.7, if air is not directed onto the face of the eyeglasses, heated air(noted by airflow 104) from behind the lens 14 will tend to flow up thedeflection surface, between the lens 14 and the block 52, and over thefront surface of the brow 30.

The foregoing detailed description of one or more exemplary embodimentsof the eyeglass frames with releasable temple members has been presentedherein by way of example only and not limitation. It will be recognizedthat there are advantages to certain individual features and functionsdescribed herein that may be obtained without incorporating otherfeatures and functions described herein. Moreover, it will be recognizedthat various alternatives, modifications, variations, or improvements ofthe above-disclosed exemplary embodiments and other features andfunctions, or alternatives thereof, may be desirably combined into manyother different embodiments, systems or applications. Presentlyunforeseen or unanticipated alternatives, modifications, variations, orimprovements therein may be subsequently made by those skilled in theart which are also intended to be encompassed by the appended claims.Therefore, the spirit and scope of any appended claims should not belimited to the description of the exemplary embodiments containedherein.

1. Eyeglass frames comprising: a face member including a rim with abrow, the rim configured to retain at least one lens; two temple membersconnected to the face member; a vent passage provided in the brow; and avent adjustment member provided on the brow directly above the at leastone lens, the vent adjustment member configured to move between a firstposition wherein the vent passage is substantially closed and a secondposition wherein the vent passage is open, the vent adjustment membersubstantially flush with a medial portion and a lateral portion of thebrow immediately adjacent to the vent adjustment member when the ventadjustment member is in the first position, and the vent adjustmentmember offset from the medial portion and lateral portion of the browwhen the vent adjustment member is in the second position.
 2. Theeyeglass frames of claim 1, the vent adjustment member provided by amoveable block that is aligned with the medial and lateral portions ofthe brow, the moveable block having a similar cross-sectional shape asthe medial portion and the lateral portion of the brow such that asubstantially continuous surface is provided from the medial portion ofthe brow, across the moveable block and to the lateral portion of thebrow when the moveable block is in the first position.
 3. The eyeglassframes of claim 2 wherein the surface is interrupted and no longersubstantially flush and substantially continuous when the moveable blockis in the second position.
 4. The eyeglass frames of claim 3 wherein themoveable block includes a medial post and a lateral post, the medialpost engaging a medial groove in the medial portion of the brow and thelateral post engaging a lateral groove in the lateral portion of thebrow.
 5. The eyeglass frames of claim 4 wherein the medial groove andthe lateral groove each include an upper recess and a lower recessseparated by a neck, wherein the moveable block is in the first positionwhen the medial post and the lateral post are in the lower recesses andwherein the moveable block is in the second position when the medialpost and the lateral post are in the upper recesses.
 6. The eyeglassframes of claim 5 wherein the neck is designed and dimensioned to allowthe moveable block to move from the second position to the firstposition when a vent adjustment force is applied to the moveable block,and wherein the neck is designed and dimensioned to prevent the moveableblock from moving from the second position to the first position whenthe vent adjustment force is not applied to the moveable block.
 7. Theeyeglass frames of claim 2 wherein the moveable block extends between 1cm and 4 cm in length between the medial and lateral portions of thebrow.
 8. The eyeglass frames of claim 1 wherein the rim is a partial rimcomprised of a polymer material.
 9. The eyeglass frames of claim 1wherein the vent adjustment member includes an anterior portion and aposterior portion, the anterior portion comprised of a first materialand the posterior portion comprised of a second material, the firstmaterial having a greater hardness than the second material.
 10. Theeyeglass frames of claim 9, wherein an upper surface of the posteriorportion is positioned above an upper surface of the anterior portion.11. The eyeglass frames of claim 10 wherein the anterior portion is ablock member including a rib and the posterior portion is a seal memberincluding a cavity configured to engage the rib.
 12. The eyeglass framesof claim 1 wherein the vent adjustment member includes a moveable blockprovided in a recess in the brow, the recess defining a deflectionsurface on the brow, wherein the moveable block substantially covers thedeflection surface when the moveable block is in the first position, andwherein a substantial portion of the deflection surface is exposed on afront of the face member when the moveable block is in the secondposition.
 13. The eyeglass frames of claim 12 wherein a front surface ofthe moveable block is substantially triangular in shape.
 14. Eyeglassframes comprising: a face member including a rim with a brow, the rimconfigured to retain at least one lens; two temple members connected tothe face member; and a vent passage provided in the brow; and a ventadjustment member provided on the brow directly above the lens andbetween a medial portion and a lateral portion of the brow immediatelyadjacent to the vent adjustment member, the vent adjustment memberconfigured to move between a first position wherein the vent passage issubstantially obstructed and a second position wherein the vent passageis substantially unobstructed, the vent adjustment member providing asubstantially continuous brow surface with the medial portion and thelateral portion of the brow when the vent adjustment member is in thefirst position, wherein a first seam is provided between the medialportion of the brow and the vent adjustment member, and wherein a secondseam is provided between the lateral portion of the brow and the ventadjustment member.
 15. The eyeglass frames of claim 14 wherein the firstseam comprises a first void and the second seam comprises a second void.16. The eyeglass frames of claim 14 wherein the vent adjustment memberis provided by a moveable block, the moveable block including a lowersurface (i) positioned in a close proximity above an upper perimeter ofthe lens when the moveable block is in the first position and (ii)positioned in a more distant proximity above the upper perimeter of thelens when the moveable block is in the second position.
 17. The eyeglassframes of claim 14 wherein the vent adjustment member includes a frontportion and a rear portion, the front portion comprised of a firstmaterial, and the rear portion comprised of a second material having alesser hardness than the first material.
 18. The eyeglass frames ofclaim 14 wherein the vent adjustment member is provided by a moveableblock, the moveable block including a medial post and a lateral post,the medial post engaging a medial groove in the brow and the lateralpost engaging a lateral groove in the brow.
 19. The eyeglass frames ofclaim 14 wherein the vent adjustment member is provided by a moveableblock positioned in a recess in the brow, the recess defining adeflection surface on the brow, wherein the moveable block substantiallycovers the deflection surface and a rear portion of the moveable blockengages the deflection surface when the moveable block is in the firstposition, and wherein a substantial portion of the deflection surface isexposed on a front of the face member when the moveable block is in thesecond position.
 20. Eyeglasses comprising: frames including rims andtemple members, each rim including a brow with a brow recess; a lensretained by each rim, the lens including an upper edge including a lensindentation formed between a medial side and a lateral side; and a ventadjustment member provided in the brow recess, the vent adjustmentmember including an anterior portion comprised of a first material and aposterior portion comprised of a second material, the first materialhaving a greater hardness than the second material, the vent adjustmentmember moveable between a first position wherein a vent passage throughthe brow recess is substantially closed and a second position whereinthe vent passage through the brow recess is substantially open.
 21. Theeyeglass frames of claim 1 wherein the first position is an upwardposition and the second position is a downward position.
 22. Theeyeglass frames of claim 2 wherein the substantially continuous surfaceis an upper surface of the brow.